CN204506349U - Railway truck and axletree thereof - Google Patents
Railway truck and axletree thereof Download PDFInfo
- Publication number
- CN204506349U CN204506349U CN201520211845.5U CN201520211845U CN204506349U CN 204506349 U CN204506349 U CN 204506349U CN 201520211845 U CN201520211845 U CN 201520211845U CN 204506349 U CN204506349 U CN 204506349U
- Authority
- CN
- China
- Prior art keywords
- axletree
- bolt hole
- hole group
- group
- screw plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 125000003003 spiro group Chemical group 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a kind of railway truck and axletree thereof, this axletree comprises axle body, and the end of described axle body has the bolt hole group for fixed type bearing; The number of described bolt hole group is at least two, and one of them coordinates fixing described bearing with bolt, all the other are in stand-by state.So, bolt hole group for subsequent use is previously provided with in the end of axletree, when axletree is overhauled, if the bolt hole previously coordinated has damage, then can repair, directly use bolt hole group for subsequent use, obviously maintenance workload is reduced, improve overhaul efficiency, and bolt hole group for subsequent use is directly manufactured by axletree originating firm, the repairing quality comparing servicing depot is higher.
Description
Technical field
The utility model relates to guideway vehicle technical field, particularly relates to a kind of railway truck and axletree thereof.
Background technology
Bearing is the important spare part of railway truck, usually be secured by bolts in axletree two ends, in vehicle operating, bearing bears the application force along axletree longitudinal direction, and be delivered on axletree by bolt, so the reliability that bearing is connected with axletree directly has influence on the safety of vehicle operating.
Existing axletree, arranges three bolts hole 1 ' in its end, concrete structure can be understood with reference to figure 1, that is, bearing is bolted to axletree end by three.
In the process of vehicle operating, the bolt of connection bearing and axletree bears alternation longitudinal force, produces and interact, along with the increase of vehicle operating mileage between bolt and bolt hole 1 ', bolt hole 1 ' will certainly produce wearing and tearing and fatigue damage, affects the reliability that bearing is connected with axletree.Therefore, when overhauling vehicle, axletree part needs to check bolt hole 1 ', when the state of bolt hole 1 ' has influence on in-use performance, needs to place under repair to it.
The measure taked the repairing of bolt hole 1 ' is at present redrilling, tapping, or hole again after plug-hole, tapping, due to high to the connection request of axletree and bearing, correspondingly, the size in axletree end bolt hole 1 ', position accuracy demand are high, therefore, when repairing, needing to adopt specialized equipment, wasting time and energy, not only efficiency is low, and effect is also not bery desirable.
In view of this, how improving existing axle construction, to reduce axletree maintenance workload, and can improve overhaul efficiency and effect, is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of railway truck and axletree thereof, by the structural development to this axletree, can reduce the work capacity of axletree maintenance, improve overhaul efficiency and effect.
For solving the problems of the technologies described above, the utility model provides a kind of axletree of railway truck, comprises axle body, and the end of described axle body has the bolt hole group for fixed type bearing; The number of described bolt hole group is at least two, and one of them coordinates fixing described bearing with bolt, all the other are in stand-by state.
The axletree of the railway truck that the utility model provides, can reduce the work capacity of axletree maintenance, and improve overhaul efficiency and effect.Particularly, in this programme, the end of the axle body of axletree is provided with at least two bolt hole groups, and one of them coordinates that with bolt bearing is fixed on axletree end, and all the other are in stand-by state, owing to being previously provided with bolt hole group for subsequent use in the end of axletree, after vehicle operating a period of time, when axletree is overhauled, if there is bolt hole to damage, then can repair, the bolt hole group that direct use is for subsequent use, obviously maintenance workload is substantially reduced, significantly improve overhaul efficiency, and, bolt hole group for subsequent use is arranged when axletree batch manufacturing, that is, bolt hole group for subsequent use is manufactured by special axletree originating firm, comparatively overhaul unit is better in size and positional precision etc. for the production facilities of general manufacturer, in contrast, the quality of bolt hole group for subsequent use is more easily guaranteed, effectively can guarantee the reliability that axletree is connected with bearing.
Alternatively, each described bolt hole group is provided with several bolts hole, and described in several of each described bolt hole group, bolt hole is evenly arranged along the circumference of described axle body.
Alternatively, all described spiro keyhole positions in circumferentially same, and are evenly arranged along the circumference of described axle body.
Alternatively, each described bolt hole group all arranges three bolts hole.
Alternatively, also comprise a screw plug group, the screw plug shutoff sealing of described screw plug group is in the bolt hole of the described bolt hole group of stand-by state.
Alternatively, described screw plug is non-metal screw plug.
Alternatively, described screw plug comprises screwed cylindrical body, and the mounting end of described cylindrical body is flange plate structure.
Alternatively, the mounting end of described cylindrical body has blind hole.
The utility model also provides a kind of railway truck, and comprise axletree and the bearing being fixed on axletree both ends, described axletree is the axletree described in above-mentioned any one.
Because above-mentioned axletree has above-mentioned technique effect, so the railway truck comprising this axletree also has corresponding technique effect, it is no longer repeated here.
Accompanying drawing explanation
Fig. 1 is the bolt hole structure schematic diagram of existing axletree end;
Fig. 2 is the structural representation of axletree in specific embodiment;
Fig. 3 is the end construction schematic diagram of axletree in Fig. 2;
Fig. 4 is the structural representation of screw plug in specific embodiment.
In Fig. 1:
Bolt hole 1 ';
In Fig. 2-4:
Axle body 10, first bolt hole 11a, the second bolt hole 12a, screw plug 13, cylindrical body 131, mounting end 132, blind hole 132a.
Detailed description of the invention
Core of the present utility model is to provide a kind of railway truck and axletree thereof, by the structural development to this axletree, can reduce the work capacity of axletree maintenance, improve overhaul efficiency and effect.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 2 and Fig. 3; Fig. 2 is the structural representation of axletree in specific embodiment; Fig. 3 is the end construction schematic diagram of axletree in Fig. 2.
In a kind of specific embodiment, the axletree that the utility model provides comprises axle body 10, and the end of this axle body 10 has the bolt hole group for fixed type bearing.
Particularly, the end of axle body 10 is provided with two bolt hole groups, and wherein, the first bolt hole group coordinates the end described bearing being fixed on axle body 10 with bolt, and the second bolt hole group is in stand-by state.
That is, during practical set, only have the first bolt hole group to use.
Here it is pointed out that the use of the ordinal number such as above-mentioned " first ", " second " is the different parts in order to distinguish same names, just to being convenient to describe, not order of representation, more should not be construed as certain and limits.The description hereinafter related to is also consistent therewith, no longer illustrates.
As above after arranging, vehicle operating a period of time, when axletree is overhauled, if the first bolt hole 11a of the first bolt hole group has damage, then without the need to placing under repair to the first bolt hole 11a, directly can use the second bolt hole group, coordinate namely by bolt and the second bolt hole group the end described bearing being fixed on axle body 10.Operation like this, obviously substantially reduces maintenance workload, significantly improves overhaul efficiency; And, second bolt hole group is the same with the first bolt hole group, all formed when axletree batch manufacturing, that is, second bolt hole group for subsequent use is manufactured by special axletree originating firm, comparatively overhaul unit is better in size and positional precision etc. for the production facilities of general manufacturer, second bolt hole group for subsequent use is newly holed with overhaul unit, compared with the bolt hole of tapping, quality is higher, more easily ensure, thus effectively can guarantee the reliability that axletree is connected with bearing, improve the safety that guideway vehicle runs.
In such scheme, the end of axle body 10 is provided with two bolt hole groups, actual when arranging, if conditions permit, more bolt hole group also can be set, as three bolt hole groups, like this, bolt hole group for subsequent use is two, can improve overhaul efficiency and repair quality further.
For ease of describing, hereafter still two bolt hole groups being set for axle body 10 end and being described, should be appreciated that for more bolt hole group be also applicable.
In concrete scheme, the first bolt hole group is provided with three the first bolt hole 11a, and the second bolt hole group is provided with three the second bolt hole 12a.
Typically, three-point fix, three bolts hole are enough to guarantee that bearing is connected with the reliable of axle body 10.
Certainly, when actual setting, if unfailing performance accesses guarantee, it is also feasible that each bolt hole group arranges two bolts hole, similarly, more more number (as four) bolt hole is also feasible, and that is, each bolt hole group can arrange several (being greater than two) bolts hole.
If arrange the bolt hole of more more number, then need the end size considering axle body 10, the problems such as the intensity of axletree, so in reality, preferred each bolt hole group arranges the scheme of three bolts hole.
Further, three the first bolt hole 11a of the first bolt hole group are evenly arranged along the circumference of axle body 10, and three the second bolt hole 12a of the second bolt hole group are also evenly arranged along the circumference of axle body 10.
Setting like this, after bearing is installed, the transmission of stressed and power etc. distribute evenly.
Further, three the first bolt hole 11a and three the second bolt hole 12a, totally six spiro keyhole positions are in circumferentially same, and are evenly arranged along the circumference of axle body 10.
Setting like this, all bolts hole that the end of axle body 10 is arranged are symmetrical, and make the stressed more even of axletree, structure is more stable.
In addition, because each spiro keyhole position is in circumferentially same, and the uniform setting of bolt hole of each bolt hole group, so corresponding mounting hole can only arrange one group on bearing, when needs use bolt hole group for subsequent use, only bearing need be turned an angle, utilize bolt hole group for subsequent use to realize installing, convenient and swift.
Above-mentioned is often to organize the location arrangements situation that three bolts hole illustrate bolt hole, is appreciated that for the bolt hole group with other number bolts hole, applicable equally.
On the basis of above-mentioned each scheme, described axletree also comprises a screw plug group, and the screw plug 13 of this screw plug group seals the second bolt hole 12a of the second bolt hole group for shutoff.
Obviously, the number of the screw plug 13 of screw plug group is corresponding with the number of the second bolt hole 12a.Specific in the program, screw plug 13 is set to three.
Due under normal operating condition, the first bolt hole 11a of the first bolt hole group is only had to be in using state, second bolt hole 12a of the second bolt hole group may occur getting rusty or enter the phenomenon that foreign matter etc. causes thread failure, thus cannot use, adopt screw plug 13 by after the second bolt hole 12a shutoff sealing, the generation of above-mentioned phenomenon can be avoided, reduce the work capacity of axletree maintenance further, improve overhaul efficiency and effect.
Please refer to Fig. 4, Fig. 4 is the structural representation of screw plug in specific embodiment.
In concrete scheme, screw plug 13 can adopt non-metallic material (as plastics, polyester material etc.) to make, and cost is lower.
In concrete scheme, screw plug 13 comprises screwed cylindrical body 131, and during assembling, this cylindrical body 131 screws in the second bolt hole 12a, its shutoff is sealed.
The mounting end 132 of this cylindrical body 131 is set to flange plate structure, so, after cylindrical body 131 screws in the second bolt hole 12a, the flange plate structure of mounting end 132 can with the end abutment of axle body 10, the installation and removal of screw plug 13 can be convenient on the one hand, foreign material etc. also can be avoided on the other hand to enter in the second bolt hole 12a from the gap between cylindrical body 131 and the second bolt hole 12a damage is caused to it.
Further, mounting end 132 is provided with blind hole 132a, and when Assembly &Disassembly screw plug 13, corresponding mounting tools operates by inserting in blind hole 132a, simple and convenient.
Particularly, this blind hole 132a can be set to the patchhole corresponding with inner-hexagon spanner.Certainly, actual when arranging, also can be set to the patchhole corresponding with the spanner of other types or mounting tools.
Except above-mentioned axletree, the invention also discloses a kind of railway truck, comprise axletree and the bearing being fixed on axletree both ends, described axletree is the axletree described in above-mentioned any one.
Other structures of railway truck can refer to prior art, repeat no more herein.
Because above-mentioned axletree has above-mentioned technique effect, so the railway truck comprising this axletree also has corresponding technique effect, no longer repeat here to discuss.
Above railway truck provided by the utility model and axletree thereof are all described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (9)
1. the axletree of railway truck, comprises axle body (10), and the end of described axle body (10) has the bolt hole group for fixed type bearing; It is characterized in that, the number of described bolt hole group is at least two, and one of them coordinates fixing described bearing with bolt, all the other are in stand-by state.
2. axletree according to claim 1, is characterized in that, each described bolt hole group is provided with several bolts hole, and described in several of each described bolt hole group, bolt hole is evenly arranged along the circumference of described axle body (10).
3. axletree according to claim 2, is characterized in that, all described spiro keyhole positions in circumferentially same, and are evenly arranged along the circumference of described axle body (10).
4. axletree according to claim 2, is characterized in that, each described bolt hole group all arranges three bolts hole.
5. the axletree according to any one of Claims 1-4, is characterized in that, also comprises a screw plug group, and screw plug (13) the shutoff sealing of described screw plug group is in the bolt hole of the described bolt hole group of stand-by state.
6. axletree according to claim 5, is characterized in that, described screw plug (13) is non-metal screw plug.
7. axletree according to claim 5, is characterized in that, described screw plug (13) comprises screwed cylindrical body (131), and the mounting end (132) of described cylindrical body (131) is flange plate structure.
8. axletree according to claim 7, is characterized in that, the mounting end (132) of described cylindrical body (131) has blind hole (132a).
9. railway truck, comprise axletree and the bearing being fixed on axletree both ends, it is characterized in that, described axletree is the axletree described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211845.5U CN204506349U (en) | 2015-04-09 | 2015-04-09 | Railway truck and axletree thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520211845.5U CN204506349U (en) | 2015-04-09 | 2015-04-09 | Railway truck and axletree thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204506349U true CN204506349U (en) | 2015-07-29 |
Family
ID=53704350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520211845.5U Expired - Fee Related CN204506349U (en) | 2015-04-09 | 2015-04-09 | Railway truck and axletree thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204506349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770027A (en) * | 2022-04-25 | 2022-07-22 | 中国铁建高新装备股份有限公司 | Axle repairing method and axle |
-
2015
- 2015-04-09 CN CN201520211845.5U patent/CN204506349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770027A (en) * | 2022-04-25 | 2022-07-22 | 中国铁建高新装备股份有限公司 | Axle repairing method and axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee after: CRRC QIQIHAR ROLLING STOCK Co.,Ltd. Address before: 161002 Qigihar City, Heilongjiang province Tiefeng District Plant Road No. 36 Patentee before: QIQIHAR RAILWAY ROLLING STOCK Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 |